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70748555989 = 109721190011
BaseRepresentation
bin100000111100011110…
…0010100101011010101
320202121120220000122111
41001320330110223111
52124343112242424
652300151031021
75053133542426
oct1017074245325
9222546800574
1070748555989
1128005796291
121186566b471
136896557aa7
1435d21cd64d
151c911c5194
hex1078f14ad5

70748555989 has 8 divisors (see below), whose sum is σ = 71408319840. Its totient is φ = 70088986800.

The previous prime is 70748555981. The next prime is 70748556031. The reversal of 70748555989 is 98955584707.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70748555989 - 23 = 70748555981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70748555981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740994 + ... + 831004.

It is an arithmetic number, because the mean of its divisors is an integer number (8926039980).

Almost surely, 270748555989 is an apocalyptic number.

It is an amenable number.

70748555989 is a deficient number, since it is larger than the sum of its proper divisors (659763851).

70748555989 is a wasteful number, since it uses less digits than its factorization.

70748555989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97331.

The product of its (nonzero) digits is 127008000, while the sum is 67.

The spelling of 70748555989 in words is "seventy billion, seven hundred forty-eight million, five hundred fifty-five thousand, nine hundred eighty-nine".

Divisors: 1 109 7211 90011 785999 9811199 649069321 70748555989